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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power coordinates program evidence, relay-group review, condition verification, and sourcing support for higher-density legacy panels.

1761-L32BWA

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Higher-density fixed control is the role of 1761-L32BWA, an AC-powered MicroLogix 1000 base linking twenty DC inputs with twelve relay outputs.
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Technical specifications for 1761-L32BWA

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1761-L32BWA
  • Product Family:
    MicroLogix
  • Product Type:
    MicroLogix 1000 32-Point AC-Powered Controller
  • Stock:
    1
  • Controller family:
    MicroLogix 1000
  • Input power:
    120/240 V AC
  • Embedded inputs:
    20 x 24 V DC
  • Embedded outputs:
    12 relay outputs
  • Embedded I/O total:
    32 points
  • Architecture:
    Fixed I/O controller
  • Weight:
    0.6 kg
  • Estimated shipping dimensions:
    8x20x7.3cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Input Grouping Output Distribution Migration Evidence Product Applications

Features:

  • Thirty-two fixed points: twenty DC inputs and twelve relay outputs
  • Higher-density base: more embedded circuits without local modular expansion
  • AC controller power: documented 120/240 V AC operation
1761-L32BWA extends the fixed MicroLogix 1000 architecture to panels with twenty sensors and twelve relay-controlled loads.

Its density reduces hardware count but makes terminal, common and program documentation central to any service or migration task.

Before downtime, the plant should hold a validated program, full I/O schedule, load inventory, supply drawing, communication method and rollback criteria.

Availability of 1761-L32BWA is subject to Apter Power inventory and sourcing confirmation.
Allen-Bradley 1761-L32BWA MicroLogix 1000 32-Point AC-Powered Controller Manuals, Datasheets, and Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Sensor source: record the 24 V DC supply and protection.
  • Common layout: map each input group and polarity.
  • Address schedule: align wire labels with ladder references.
  • Acceptance: challenge each point and record its state in the project.
  • Group supplies: identify every common and switched voltage.
  • Load demand: record running current and inrush per output.
  • Inductive loads: preserve approved suppression.
  • Isolation test: verify wiring and field response before reconnecting production.
  • Ladder archive: save and reopen the program before shutdown.
  • Software access: confirm cable, release and password information.
  • I/O cross-reference: map every point to its device and replacement channel.
  • Cutover: define functional, alarm and rollback tests for all 32 points.
  • Medium fixed-I/O machines: combine twenty sensors with twelve relay loads.
  • Standalone panels: execute local sequencing without modular I/O.
  • Legacy production support: maintain approved MicroLogix 1000 control while migration is qualified.
Description
Where a standalone panel needs a denser fixed terminal set, 1761-L32BWA combines twenty sensor inputs and twelve relay commands with the stored MicroLogix 1000 application. The architecture avoids local modular I/O but makes every terminal dependency part of the controller replacement.

Group-level field power is especially important on 1761-L32BWA because one common or protective-device fault can affect several relay circuits together. A complete wiring schedule helps maintenance distinguish shared supply failures from controller or load faults.

The discontinued 1761-L32BWA creates a conversion task that spans ladder behavior, grouped field power and a dense fixed terminal set. The target architecture must reproduce those relationships and machine startup behavior before the original base is retired.
Alternative Names
Allen-Bradley 1761-L32BWA MicroLogix 1000 32-point AC controller 1761L32BWA AB fixed 32-point relay PLC
Technical notes
The highest migration risk for 1761-L32BWA is losing the relationship between its fixed terminal map and the ladder application. Reopen the archived program, map every input and relay group, and define point-by-point acceptance tests before disconnecting the production panel or transferring field conductors during migration.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why can several relay circuits on 1761-L32BWA fail together after panel maintenance?
Check the common and field supply shared by that group, upstream protection and terminal continuity before treating the event as multiple relay failures.
How should 1761-L32BWA be captured for a thirty-two-point migration project?
Export the ladder application, photograph every terminal and build a cross-reference linking wire numbers, commons, field voltages, loads and controller addresses.
What should engineers investigate when one input group on 1761-L32BWA reads incorrectly?
Compare the group common and sensor supply with unaffected inputs, then review polarity, wiring continuity and the corresponding project addresses.
Why can a restored 1761-L32BWA program run while field behavior still differs from the original panel?
A correct file can still be paired with wrong terminal mapping, relay-group supplies or communication settings; complete a controlled point test before production.
When is a direct hardware spare insufficient for maintaining 1761-L32BWA?
If the program, password, communication method or wiring schedule is missing, a spare base alone cannot recreate the installed control function.
How should relay inrush be handled when replacing loads controlled by 1761-L32BWA?
Review the actual load and suppression at each affected point, retain the original common grouping and stop the change if the replacement duty exceeds the approved circuit design.